Thanks Steve. Would the format be more like this though? I think there's some extra around the Client IP part as the iRules errored when I tried to set one up.
when LB_SELECTED {
log local0. "Client IP:[IP::client_addr] connected to real server IP: [LB::server addr]"
}
Also, just for my learning, when you say "It's too early to log the selected Pool Member in the CLIENT_ACCEPTED event." So the "CLIENT ACCEPTED" event is simply tied to the Load Balancer accepting the connection from the client, and at that point the LB has not yet connected the client to a member of the pool to determine a destination host IP? And I see where to assign the iRule to the Virtual Servers now, which for some reason I overlooked before.